Java SE (Java Platform, Standard Edition)

Hi,
I would like to recreate this program in java:
[http://www.dentimax.com/Images/screens/lg/scheduler.jpg]
with the added ability to move graphically, dragging the mouse windows appointments between columns and rows.
To do this, I thought a JDesktopPane with JInternalFrame on a higher level and a table designed by hand at a lower level, but I would create many problems to be able to understand what the point of the table is the window. To complicate everything then there is the fact that both levels must scroll vertically with a JScrollBar.
How can I do to make things a little easier.
Help.